CN201288666Y

CN201288666Y - Structure for axial push stopping apparatus of cyclone compressor

Info

Publication number: CN201288666Y
Application number: CNU2008202007700U
Authority: CN
Inventors: 田村贵宽; 赵艳玲; 伍圣念; 江锡林; 曹骥; 杨家祥
Original assignee: HIACHI COMPRESSOR PRODUCTS (GUANGZHOU) CO Ltd
Current assignee: Johnson Controls Hitachi Wanbao Compressor Guangzhou Co Ltd
Priority date: 2008-09-19
Filing date: 2008-09-19
Publication date: 2009-08-12
Anticipated expiration: 2018-09-19

Abstract

The utility model relates to the technical field of electromechanics and refrigeration, and provides an axial thrust seal apparatus for scroll compressor. In the scroll compressor, the upper and lower ends of the crank for driving the dynamic eddy are fixed by bearings, the middle part of the crank is equipped with a balance block and an electromechanical rotor, the axial thrust seal apparatus is mounted below the upper bearing, the main function is bearing the downward axial force of the moving component of the compressor on the crank, axially sealing and ensuring the reasonable flow of the interior oilpath of the compressor. The apparatus is formed by cold machining forming composite material in stamping manner, and integral or combined structures can be machined. The apparatus has the advantages of simple manufacture process, easy machining, high production efficiency and low cost, and has the characteristics of low energy consumption, small pollution and stable quality.

Description

Scroll compressor axial thrust sealing device structure

Technical field

The utility model relates to the scroll compressor in dynamo-electric and the refrigeration technology field.

Technical background

Scroll compressor has efficient height, low noise advantages, is widely used at present in cabinet air-conditioner and the small-sized household central air-conditioner.

Fig. 1 is the scroll compressor structural representation.Scroll compressor mainly comprises housing 1, fixed scroll 2, motion vortex dish 3, bent axle 4, frame 5, axial thrust seal arrangement 6, motor (rotor 7), upper bearing (metal) 8, counterweight 9 and lower bearing 11 etc.Axial thrust seal arrangement 6 is positioned at the below of upper bearing (metal) 8.

After compressor assembling owing to be fixed in the part on the bent axle 4 because the weight of self can produce downward gravity, adopt axial thrust seal arrangement 6 with this weight transfer on frame 5, avoid crankshaft component to move axially.When compressor operating, when motor by bent axle 4 with transmission of power to motion vortex dish 3, motion vortex dish 3 forms a plurality of compressor room with fixed scroll 2 in the process of translation, finish the work cycle process of air-breathing-compression-exhaust.Above-mentioned air-breathing-working procedure of compression-exhaust in, for oily rate is told in the efficient and the minimizing that improve compressor, the lubricant oil of avoiding having lubricated bearing 8 flows directly on the motor, by after 6 sealings of axial thrust seal arrangement oil is discharged in the oil sump 12 of compressor bottom by oil exit pipe 10.

In the prior art, the axial thrust seal arrangement 6 of scroll compressor normally adopt after thrust bearing and the sealing block split processing again in conjunction with as together, sealing block is the dimensional accuracy that reaches needs behind the casting by machining.The axial thrust seal arrangement of this structure owing to adopted casting and machining in manufacture process, can have the following disadvantages:

1, the casting processing energy consumption is big, seriously polluted, is unfavorable for environmental protection, and the cost height;

2, the foundry goods process-cycle longer, manufacturing efficiency is low;

3, part is thinner, and in the machining process easy deformation, machining accuracy stability is bad.

The model utility content

The purpose of this utility model is the deficiency for the axial thrust seal arrangement that overcomes existing scroll compressor, a kind of scroll compressor axial thrust sealing device structure of design, it has simple in structure, advantages such as cost of production is low, steady quality, can enhance productivity, reduce the pollution of manufacture process environment.

The utility model can be realized by following technical solution:

A kind of scroll compressor axial thrust sealing device structure, described scroll compressor includes housing 1, frame 5 is installed in the housing 1, fixed scroll 2, motion vortex dish 3, bent axle 4, motor, frame 5 central authorities establish axis hole 50, the central authorities of frame 5 establish axis hole 50 tops and install and fix scroll 2 and motion vortex dish 3, excentric sleeve 31 is established in motion vortex dish 3 belows, fixed scroll 2 and motion vortex dish 3 constitute the vortex compression chamber, one bent axle 4 passes the central axis hole 50 of frame 5, the eccentric part 41 of bent axle 4 inserts in the excentric sleeve 31 of motion vortex dish 3, the middle and lower part of bent axle 4 is installed equilibrium block 9 respectively, rotor 7 and spring bearing 11, central axis hole 50 belows of frame 5 are provided with bearing bore 51, one bearing 8 is installed in this bearing bore 51, the axis hole of bearing 8 penetrates bent axle 4, an axial thrust seal arrangement 6 is installed in the lower end surface of bearing bore 51, the side of bearing bore 51 is provided with spill port 52, one return tube 10 is connected to the oil sump 12 of below in the housing 1 from spill port 52, it is characterized in that: described axial thrust seal arrangement 6 is to adopt composite board punching press cold working to be made into monolithic construction or adopt the thrust bearing of composite board punching press and the composite structure of the seal arrangement made with common plate stamping cold working.

Described composite board is a steel back layer is arranged and to be composited by bronze powder+tetrafluoroethylene and bulking agent mixed sintering layer.

Described steel back layer is cold rolling Carbon Steel Plate.

Described common sheet material is general steel plate or steel band.

It is that an overall structure makes it possess the function of axial thrust and sealing simultaneously that the utility model adopts the composite board impact style with lubricating function to be cold worked into, have stamping part manufacturing efficiency height, stay-in-grade advantage, adopt the composite structure of axial thrust bearing and common plate stamping cold working part to reduce production costs.

Description of drawings

Fig. 1 is for adopting scroll compressor structural representation of the present utility model;

Fig. 2 is the utility model structural representation;

Fig. 3 is the plan view of Fig. 2;

Fig. 4 is another structural representation of the present utility model (A of Fig. 5-A sectional view);

Fig. 5 is the plan view of Fig. 4;

Embodiment

Embodiment one

With reference to figure 1, Fig. 2 and Fig. 3, Fig. 1 adopts scroll compressor structural representation of the present utility model, and Fig. 2 is this utility structure schematic representation, and Fig. 3 is Fig. 2 plan view.

Scroll compressor as shown in Figure 1, include housing 1, frame 5 is installed in the housing 1, fixed scroll 2, motion vortex dish 3, bent axle 4, motor, frame 5 central authorities establish axis hole 50, the central authorities of frame 5 establish axis hole 50 tops and install and fix scroll 2 and motion vortex dish 3, excentric sleeve 31 is established in motion vortex dish 3 belows, excentric sleeve 31 lower end surfaces of motion vortex dish 3 become sliding bearing to contact with central axis hole 50 upper-end surfaces of frame 5, make fixed scroll 2 and motion vortex dish 3 constitute the vortex compression chamber, one bent axle 4 passes the central axis hole 50 of frame 5, the eccentric part 41 of bent axle 4 inserts in the excentric sleeve 31 of motion vortex dish 3, the middle and lower part of bent axle 4 is installed equilibrium block 9 respectively, rotor 7 and spring bearing 11, central axis hole 50 belows of frame 5 are provided with bearing bore 51, one bearing 8 is installed in this bearing bore 51, the axis hole of bearing 8 penetrates bent axle 4, an axial thrust seal arrangement 6 is installed in the lower end surface of bearing bore 51, the side of bearing bore 51 is provided with spill port 52, one return tube 10 is connected to the oil sump 12 of below in the housing 1 from spill port 52, described axial thrust seal arrangement 6 is to adopt composite board punching press cold working to be made into monolithic construction (as shown in Figures 2 and 3), in the present embodiment, composite board is a steel back layer is arranged and to be composited by bronze powder+tetrafluoroethylene and bulking agent mixed sintering layer, and wherein steel back layer is cold rolling Carbon Steel Plate.

Embodiment two

With reference to figure 1, Fig. 4 and Fig. 5, the scroll compressor structure of present embodiment and embodiment one identical (as Fig. 1), different is the structure of axial thrust seal arrangement 6 by sealing block 61 and thrust bearing 62 combinations, wherein sealing block 61 adopts general steel plate or band steel drift to press cold-formed, thrust bearing 62 is to be made into by composite board punching press cold working, composite board is a steel back layer is arranged and to be composited by bronze powder+tetrafluoroethylene and bulking agent mixed sintering layer, and wherein steel back layer is cold rolling Carbon Steel Plate.

Adopt this method, because the fixing thrust bearing 62 of sealing block 61, structure can be complicated, but cost of production is lower.

Claims

1. scroll compressor axial thrust sealing device structure, described scroll compressor includes housing (1), frame (5) is installed in the housing (1), fixed scroll (2), motion vortex dish (3), bent axle (4), motor, frame (5) central authorities establish axis hole (50), the central authorities of frame (5) establish axis hole (50) top and install and fix scroll (2) and motion vortex dish (3), excentric sleeve (31) is established in motion vortex dish (3) below, fixed scroll (2) and motion vortex dish (3) constitute the vortex compression chamber, one bent axle (4) passes the central axis hole (50) of frame (5), the eccentric part (41) of bent axle (4) inserts in the excentric sleeve (31) of motion vortex dish (3), the middle and lower part of bent axle (4) is installed equilibrium block (9) respectively, rotor (7) and spring bearing (11), central axis hole (50) below of frame (5) is provided with bearing bore (51), one bearing (8) is installed in this bearing bore (51), the axis hole of bearing (8) penetrates bent axle (4), an axial thrust seal arrangement (6) is installed in the lower end surface of bearing bore (51), the side of bearing bore (51) is provided with spill port (52), one return tube (10) is connected to the oil sump (12) of below in the housing (1) from spill port (52), it is characterized in that: described axial thrust seal arrangement (6) is to adopt composite board punching press cold working to be made into monolithic construction or adopt the thrust bearing of composite board punching press and the composite structure of the seal arrangement made with common plate stamping cold working.

2. scroll compressor axial thrust sealing device structure as claimed in claim 1 is characterized in that: described composite board is a steel back layer is arranged and to be composited by bronze powder+tetrafluoroethylene and bulking agent mixed sintering layer.

3. scroll compressor axial thrust sealing device structure as claimed in claim 2 is characterized in that: described steel back layer is cold rolling Carbon Steel Plate.

4. as claim 1 or 2 or 3 described scroll compressor axial thrust sealing device structures, it is characterized in that: described common sheet material is general steel plate or steel band.